diff --git a/v2rayN/v2rayN/App.xaml b/v2rayN/v2rayN/App.xaml
index ad8f5d4a..ddb2a4ba 100644
--- a/v2rayN/v2rayN/App.xaml
+++ b/v2rayN/v2rayN/App.xaml
@@ -1,9 +1,9 @@
 <Application
     x:Class="v2rayN.App"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:conv="clr-namespace:v2rayN.Converters"
+    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
     ShutdownMode="OnExplicitShutdown"
     StartupUri="Views/MainWindow.xaml">
     <Application.Resources>
@@ -11,7 +11,7 @@
             <ResourceDictionary.MergedDictionaries>
                 <materialDesign:BundledTheme
                     BaseTheme="Light"
-                    PrimaryColor="DeepPurple"
+                    PrimaryColor="Blue"
                     SecondaryColor="Lime" />
                 <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />
             </ResourceDictionary.MergedDictionaries>